Heater



Mar. 20, 1923.

, 1,449,311 J. BEARD HEATER Filed Dec. 6, 19

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A'rrvs.

Patented Mar. 2Q, 1923.

warren stares JAMES BEARD, OF PASADENA, CALIFORNIA.

HEATER.

Application filed December 6, 1920.

T 0 all whom it may concern.

Be it known that I JAMES BEARD, a subject of the King of (rreatBi-itain,residing at Pasadena, in the county of Los Angeles and State ofCalifornia, have invented new and useful Improvements in Heaters, ofwhich the following is a specification.

It is the object'of this invention to provide a heater particularlyadapted to employ gaseous fuel. and arranged to provide a maximum heatradiating surface. It is a further object of the invention to providebaflies within the burner in such manner as to force the products ofcombustion against the walls of the burner and thereby obtain a maximumheating of said walls.

The invention will be readily understood from the following descriptionof the accompanying drawing, in which:

Figure 1 is a side elevation of a heater constructed in accordance withthe invention.

Fig. 2 is a vertical section on the line 22 of Fig. 1.

Fig. 3 is a top view of the burner.

Fig. 4 is a transverse section on the line 4-4 of Fig. 2.

Fig. 5 is a longitudinal section on the line 55 of Fig. 2.

The burner includes a base 1 of any suitable construction having theburner head 2 projecting above the same. and supported by the mixtureconduit 3 depending from the burner head within the base. A usual mixingchamber 4: is mounted upon the conduit, and the fuel supply pipe 5depends from the same so as to form a support for the burner elements.This pipe may be provided with any suitable cut off valve 6. The burnerhead 2 preferably has a top 7 mounted thereon as by being receivedwithin a flange, and this top is provided with a series of openings 8for the discharge of products of combustion. An annular flange 9 ispreferably also formed upon the top 7 for a purpose to be hereinafterdescribed.

A series of chambers is arranged one above the other and havingrestricted openings connecting the same. The lowermost combustionchamber includes a wall 10 extending upwardly from a flange 11 receivedover the edge of base 1, and this combustion chamber encloses the burnerhead and its top to form an annular space 12 between the burner and thewalls of the chamber. The

Serial No. 428,776.

wall 10 curves inwardly at its upper end and communicates with the wall13 forming the next upper combustion chamber so as to form a restrictedopening 14: between the two chambers.

' The wall 13 is first curved outwardly and then curves inwardly at itsupper end to form a restricted opening 15 between the combustion chamberformed by wall 13 and the next upper combustion chamber formed by wall16. In similar manner succeeding combustion chambers formed by walls 17and 18 communicate with the next lower combustion chamber throughrestricted opening 19 and 20, and the walls forming said chambers firstcurve outwardly and then inwardly to the next upper chamber. It will benoted that each combustion chamber is of less. cross sectional area thanthe preceding combustion chamber, and that the uppermost combustionchamber terminates in a flue 21 to which may be connected a usual stovepipe.

Baflles are provided in the respective combustion chambers for causingthe products of combustion rising through the chambers to be thrownoutwardly against the chamber walls. As an instance of this arrangement,the baffles may be connected by rods 22 axially disposed, and receivedin the restricted openings connecting the combustion chambers. A rod 22extending upwardly from the uppermost baffle is received in flue 21 andmay be fixed to a spider 23 mounted upon the flue. The baflies receivedwithin the respective chambers are shown at 24, and the surfaces ofthese bafiies conform to the curvature of the walls forming thecombustion chambers so as to provide spaces of uniform thickness betweenthe combustion chamber walls and the baffles for the passage of theproducts of combustion from one chamber to the next through therestricted opening connecting the same. The lower ends of the bafilesjust above the restricted openings connecting the chambers with the nextlower chamber are preferably reversely curved as shown at 25 relative tothe curvature of the remaining portions of the baffles, and the walls ofthe combustion chambers. By this arrangement the products of combustionentering a chamber through the restricted opening at its base aredirected outwardly against the wall of the chamber, and will then passthrough the space between the wall of the chamber and the baflie to therestricted opening at the top of the chamber.

The curved surface 25 of the lowermost battle is preferably providedwith radial fins 26 adapted to impinge against the wall of thecombustion chamber at its restricted opening in order to position rods22 and the baffles against lateral'displacement, and the lower end ofthis curved portion of the lowermost baiile preferably rests upon thetop of the burner head Within flange 9. The top of the burner head maybe provided with a central squared lug 30 adapted to be received withina cooperating socket 31 in the base of the lowermost battle forpreventing relative rotation of the parts.

The upper portion of the lowermost baflle is preferably made separatefrom its lower portion and is provided with internal lugs 32 receivedwithin the rim of the lower portion when the parts are assembled. Bymaking the lowermost baffle separable as thus described, the variouselements comprising the burner may be more readily assembled andconveniently manufactured.

It will be noted that the construction as thus described provides meanswhereby the products of combustion as they move upwardly through thesucceeding combustion chambers will be directed against the walls of thechambers, so as to obtain maximum heating of the walls of the chamberswhich are so arranged as to afford maximum heat radiation therefrom.

Various changes may be made without departing from the spirit of theinvention as claimed.

lVhat is claimed is:

A gas heater comprising a casing including superimposed sphericalmembers having openings at their confronting sides to providecommunication between the several members, said members graduating indiameter from the lowermost member to the up permost, a burner below thelowermost member, a plurality of battle members sustained one upon theother and upon said burner, said bafile members being of substantiallyspherical form and graduated in diameter from the lowermost member tothe uppermost, with one member for each of the first members, andcooperating means carried by the burner and the lowermost battle memberfor locking all of the bafiie members against relative movement withrespect to the casing.

In testimony whereof I have signed my name to this specification.

JAMES BEARD.

